/Engine/Plugins/Editor/UVEditor/Source/UVEditorTools/Public/ToolTargets/UVEditorToolMeshInput.h
Updates the other meshes using the mesh in UnwrapPreview. Assumes that the overlay in UnwrapPreview is updated. Used to update everything when the applied preview was not being updated in tandem with the unwrap preview (otherwise one would use UpdateCanonicalFromPreviews).
void UpdateAllFromUnwrapPreview ( const [TArray](API\Runtime\Core\Containers\TArray)< int32 > * ChangedVids, const [TArray](API\Runtime\Core\Containers\TArray)< int32 > * ChangedConnectivityTids, const [TArray](API\Runtime\Core\Containers\TArray)< int32 > * FastRenderUpdateTids, bool bBroadcast )